<!--
/* 19Mar2007 */
/* Presentation Navigate with SlideDown and BlindUp effects */
function presNavEff(x,nPres,target)
{
        pres = nPres[x];
        Effect.SlideDown(pres,{duration:3.0,queue:{position:'end',scope:target}});
        Effect.BlindUp(pres,{duration:6.0,queue:{position:'end',scope:target},
                         afterFinish: function ()
                         {
                                if (x == nPres.length - 1) {
                                        presNavEff(0,nPres,target);
                                } else {
                                        presNavEff(++x,nPres,target);
                                }
                         }
                         });
}

function setPresentation() {

        /* Start Presentation */
        presentation_items = document.getElementsByClassName("presentation");
        if  (presentation_items.length > 1) {
                presNavEff(0,presentation_items,'presentation');
        }else if (presentation_items.length > 0) {
                presentation_items[0].style.display = 'block';
        }else if (presentation_items.length == 0 && document.getElementById("presentations-container")) {
                document.getElementById("presentations-container").style.visibility = 'hidden';
        }
}

-->